Featured Articles and Guides

Featured Articles and Guides category includes general articles about batteries, where and how to use them, how to pick the right battery for specific task and similar.

Here is the list of our latest articles and guides, ordered according to the added date:

H6 vs H7 Battery

optima ds6 w150pxH6 and H7 are battery labels (battery codes) according to the DIN standard and are rarely used in the US - more commonly in Europe.

H6 and H7 batteries feature similar dimensions, but not quite the same, leading to different performances.

DIN (German Industrial Standard) Part Number system is (being) replaced by the ETN (European Type Number) consisting of 6 or 9 numbers. But, DIN codes H6 and H7 are still being used quite often.

Best Honda Power Generators

honda eu7000is w150pxHonda manufactures some of the best and most durable and toughest power generators on the market, often with the same warranty for commercial and residential use.

Honda power generators are known for reliable and quiet operation and excellent craftsmanship. But, Honda power generators are also far from being the cheapest units on the market. On contrary, they are expensive units, but what You pay is what You get...

Best Electric Bikes Under $500

ebike under 500 mElectric bikes are becoming a very popular means of transportation, saving fuel, time, money and offering possibilities that are not available using ordinary bikes.

Ebikes under $500 offer reasonable performances at acceptable prices, but with all the options and models, it can be somewhat difficult to find "the best" electric bike. Here is our list of the best electric bikes under $500, just be sure to choose according to your own needs and preferences.

BCI Group 24 vs Group 27 Battery

mighty max ml75 12 mBCI Group 24 batteries and BCI Group 27 batteries are very similar batteries in terms of dimensions, battery types, chemistry, and in the end, their intended use.

However, these batteries are not exactly the same and they should not be used interchangeably unless explicitly permitted by the manufacturer of the intended application/service/tool.

Best Battery for Diesel Truck

dodge ram w150pxStarting batteries can provide strong currents for very short periods of time, ensuring the safe starting of gas and diesel car and truck engines.

However, not all trucks are made equal, and starting large 6-7+ liter diesel engines during cold winter nights after being drained by various parasite loads can put a rather large strain on the battery, requiring strong and reliable batteries.

What Size Generator for 30 Amp RV?

30 amp rv generators mCamping can be a lot of fun as long as one has enough power to run an AC unit, fridge, TV and multimedia set, microwave, or any other similar appliance and device.

30 Amp RVs are very popular and affordable vehicles and can be hooked to the mains power in any camp. But, what when You find yourself in a remote location with no mains power present? The answer is simple - hook up a good RV 30 Amp generator and enjoy your camping ...

Best Portable 10000 Watt Generator

duromax xp12000eh w150pxPortable 10000 watt generators are strong and durable units, being able to provide plenty of power, over a longer period of time and are used in commercial and residential applications to power a broad range of tools and appliances.

Most 10000 watt generators are dual-fuel units, although some industrial units are gas-only generators. Also, some brands offer tri-fuel power generators, helping the users find suitable fuel even in emergencies and longer blackouts.

Outdoors LED Solar Post Lights

solar post lights mOutdoors LED solar post lights are very practical lighting solutions for pathways, doorways, streets, fences, patios, gardens, etc. which combine LED lights, solar panels, rechargeable batteries, and charging controllers in one system.

Outdoor LED solar post lights can be mounted on posts, walls, fences, or any suitable, strong enough surface, that is capable of supporting these lights. Solar post lights come in many sizes with many different options regarding the additional features, making them very popular not only for commercial applications but also for residential use.

Off-the-Grid: How Many Watts Does a Toaster Use?

2 slice bread toaster w150pA toaster is a very popular kitchen appliance, commonly found in most homes, and is used for toasting bread or various toaster pastries.

Since toasters need just a few minutes to toast 2 or 4 slices of bread, their impact on energy bills is almost negligible. But, in case of blackouts, it is very important to know their power requirement if You wish to power your toast via power inverter, power station, and/or power generator.

Best Champion Power Generators

champion 75531i w150pxChampion Power Equipment is a company that manufactures a long list of power generators and related accessories, tools, and spare parts.

Champion power generators are known as reliable and durable units that are available at acceptable prices - there are sometimes better power generators, but in most cases, such units are much more expensive.

What To Do If Carbon Monoxide Alarm Goes Off?

co alarm goes off mCarbon Monoxide (CO) is an invisible, odorless gas that is created when organic compounds and fuels burn without enough oxygen being present, including gasoline (gas), diesel, wood, oil, coal, propane, natural gas, and similar.

Problem with the carbon monoxide is that it is very dangerous for humans and animals and the only real protection are Carbon Monoxide alarms that continuously monitor the presence of CO in the air, which is great. But, what to do if/when Carbon Monoxide goes off?

Best 3000 Watt Power Generators

3000 watt generators m3000 Watt power generators are very balanced units, offering strong and reliable power at acceptable cost and noise, from relatively compact units.

Unlike somewhat smaller and weaker 2000 Watt power generators, modern 3000 Watt power generators often come with features that were reserved for larger units just a few years ago.

8 Volt Lithium Golf Cart Batteries

golf cart w150pxLead-acid and lithium batteries are both made in BCI Groups GC2/GC2H (6 Volt) and GC12 (12 Volt) sizes, but what about BCI Group GC8/GC8H (8 Volt) batteries? Are there 8 Volt lithium golf cart batteries?

Here is our attempt to answer this question and to clarify few things about not only lithium golf cart batteries, but about lithium batteries in general.

Golf Cart Batteries - Groups/Sizes, Types, and Features

golf carts w150pxGolf carts and other electric vehicles rely on their built-in batteries to provide them with enough power and energy for propulsion.

In order to increase the range and acceleration of the golf cart, the golf cart battery must be able to both store and to be able to release plenty of energy, often rapidly, while not causing weight penalties. Also, the golf cart battery must be able to cycle a lot, tolerate deep cycle discharges, to accept the charge quickly and similar. These requirements are not easy ones...

Generator vs. Inverter: What is an Inverter Generator?

wgen7500df w150pxRegular generators and inverter generators are very similar devices that convert the chemical energy of the fossil fuel into mechanical energy (rotation of the internal combustion engine and electric generator) and mechanical energy into electric energy.

However, although their operation is very similar, internally there are several, very important differences...

48V Lithium Golf Cart Batteries

48v lithium golf cart battery m48V lithium golf cart batteries offer many benefits including some serious weight savings, more efficient battery chemistry, a larger number of charging/discharging cycles, faster charging, longer range, etc.

However, the price of 48V lithium golf cart batteries is higher than the price of the 48V lead-acid golf cart battery pack - at least in the beginning. In the long run, 48V lithium batteries save both money and time ...

Car Battery Testing & Voltage - How Many Volts is a Car Battery?

suv w150px
suv w150px

The car battery provides energy not only for cranking the engine, but it also powers a broad range of devices that may be turned on when the engine is off, even when the car is locked, like GPS units, alarms, and other security systems, multimedia devices, lights, etc.

While car batteries feature a nominal voltage of 12 volts, in real life, this voltage can be anywhere from just a few volts (or even 0 volts!) to almost or even slightly over 15 volts. The exact battery voltage depends on the engine being turned On or Off and the battery's charge condition, age, load, temperature, etc.

How Many Batteries are in a 48 Volt Golf Cart?

trojan t 105 w150px
trojan t 105 w150px

Electric golf carts are powered by onboard battery packs which must be replaced from time to time. Commonly, electric golf carts use 36 volts and 48 volts electric systems, although 72 volts electric golf carts are becoming more and more popular.

Electric golf cart battery packs are based on 6V, 8V, and 12V lead-acid batteries, although in recent times, 12V, 24V, 36V, and 48V golf cart lithium batteries are also being manufactured. So, how many batteries are in a 48-volt golf cart?

How to Convert Cold Cranking Amps (CCA) to Amp Hours (Ah)

optima 34 78 redtop w150px
optima 34 78 redtop w150px

Conversion between Cold Cranking Amps (CCA) and Amp Hours (Ah) is not a direct one, for one very simple reason: Cold Cranking Amps describe the ability of the battery to provide strong currents required for starting/cranking of internal combustion engines, usually for 30 seconds, while Amp Hours (Ah) describes the capacity of the battery and its ability to provide certain current for, usually, 20 hours.

Basically, Cold Cranking Amps (CCA) and Amp Hours (Ah) both describe the capacity of the battery and its ability to provide current for some time - they are just two extremes of the battery usage.

Best Lawn Mower Battery - Types, Sizes, and Replacements

riding lawn mower w150pxLawn mower, tractor, and garden starting batteries are used for starting/cranking internal combustion engines and sometimes for powering other electric loads, including lights, smaller winches, various pumps, and similar devices.

When looking for a new battery, one must pay attention to several details in order to get the right battery that will serve well for years ahead.

Best Propane/Gasoline Dual Fuel Generators

dual fuel generators mDual fuel power generators are types of generators that can out-of-box use both gasoline or propane, which can be very helpful in emergencies where gasoline can be hard to find.

Also, propane as fuel has many advantages over gasoline - it is more environment friendly, it stocks up more easily, it is more engine-friendly fuel, etc.

Best Wet/Flooded, Gel-Cell, AGM and Lithium 12V 100Ah Deep Cycle Batteries

odyssey 31m pc2150 w200pxWet/flooded, gel-cell, AGM, and lithium 12V 100Ah deep cycle batteries are a very popular group of deep cycle and dual-purpose batteries, offering relatively large capacities (100+ Ah), a large amount of stored energy (1200+ Wh), and large discharge currents at acceptable price and weight.

Due to the maintenance requirements, wet/flooded batteries are used rarely, with the SLA Gel and AGM batteries being most common. Also, lithium 12V 100Ah batteries are getting more and more present on the market, offering huge weight savings.

Best Kayak Trolling Motor Battery

expertpower ep12100 w200Trolling motors are commonly used as means of propulsion on kayaks of various sizes, especially on fishing kayaks, intended for longer fishing trips that last for hours and sometimes even for days.

The main issue any kayak owner has is the kayak's load capacity. While electric trolling motors are lightweight and feature excellent weight to thrust ratio, their batteries are anything but light - unless lithium kayak trolling batteries are used.

The Best Fish Finder Batteries for Kayaks and Smaller Boats

mighty max ml12 12 w200pxFish finder batteries for kayaks and smaller boats must be lightweight and compact, but accept charge quickly from various sources, and should be able to power the fish finder during the entire fishing session without the need to be recharged before going to shore or starting the main engine (if present).

Fish finder batteries are spill-proof AGM and Gel-Cell lead-acid batteries and Lithium Iron Phosphate (LiFePO4) batteries. Most fish finder batteries feature nominal capacity in the 5 - 20 Ah range.

Best 2000 Watt Portable Inverter Generators

best 2000w gen m2000 Watt portable inverter generators are very popular units, offering reliable power from rather compact devices at an acceptable weight.

While 2000 Watt inverter generators differ in features and specifications, finding the best one often depends on personal needs, requirements, but also a budget.

Is a Car Battery AC or DC Power Source?

toyota w150pxSince automotive, marine, and industrial batteries are commonly used for powering both AC and DC loads, many people actually wonder if the simple car or marine battery is AC or DC power source?

This time, the answer is very simple.

The Best Power Inverter For Cars and Trucks

bestek 300w w150pxPower inverters for cars and trucks are becoming increasingly popular due to the large number of devices and gadgets that must be powered or at least occasionally charged while in the car.

As such, car power inverters should feature a car cigarette lighter adapter plug (12V DC) providing high-speed charging for smartphones, tablets, cameras, drones, but also for laptops and similar devices. However, due to the power limitations of the car cigarette lighter adapter, the output power of car inverters is also limited.

Battery Operated Heater - Can a Battery Power a Tent or RV Heater?

tent by the creek w150pxSpace heaters are commonly used for heating tents, RVs, offices, rooms, cars, and even homes and apartments. They directly convert chemical or electrical energy into heat, warming up the desired area. Since space heaters directly convert chemical energy into heat, they are simple, reliable, and rather affordable, but also they are not as efficient as, for example, Air Conditioning units.

Battery operated heaters can be of great help when camping or being off-the-grid by keeping You warm during long, cold days and nights. Right? Well, things are not that simple ...

Watts to BTU and BTU to Watts Conversions

rv air conditionerWatts to BTU and BTU to Watts conversions are commonly required when calculating the power of devices that are used for air heating and cooling, like various AC units and electric heaters.

'Slight' issue is the fact that BTU is a unit of energy, while watts are a unit of power, and they can't directly be converted.

kWh to HP and HP to kWh Conversions

powerlines w150px

While HP is a unit of power, kWh is a unit of energy and direct conversion of these two units is not possible, without introducing the third parameter - time (T[s]).

kWh to HP and HP to kWh conversions are very important when both power and energy of internal combustion engines are transferred, stored, and compared with the energy and power of electric motors, inverters, pumps, winches, and other similar units that are powered by electric energy.

Best Portable Quietest Generator - For Camping, Tailgating, in Emergencies, etc.

quietest generator mPower generators are used when electric power is needed and mains power is not present - when camping, tailgating, in emergencies, and similar.

One of the very important features of power generators is - noise level. A loud power generator can be very annoying, especially when working for a longer period of time. On the other hand, a quiet power generator is a robust and reliable, but almost silent unit, giving peace of mind in more ways than just one ...

How Long Will a 100 Amp Hour Battery Last?

odyssey 31m pc2150st m battery mLead-acid and lithium 100 Amp-Hour batteries are commonly used in automotive, marine, industrial, and off-the-grid applications as starting, dual-purpose and very often, as deep-cycle batteries.

Since they commonly used in many critical systems (medical, security, etc.) many people wonder how long can a 100Ah battery last under a certain load.

How Long Does It Take to Charge a Car Battery?

car in the wood w150pxoptima 34 78 redtop w150pxRegardless of the car battery type or brand, from time to time it may become necessary to recharge the car battery using the battery charger. Was the battery discharged due to the parasite load, multimedia devices, or for some other reason, is not the topic of this article.

However, if that happens several times over a short period of time, check the alternator and the rest of the electric system of your car.

Volts and Amps to Watts Calculator

volts amps to watts calc mHere is a simple volts and amps to watts calculator, with short explanations, formulas, and charts.

Unit conversions sometimes can be difficult, but with most basic electric units like voltage, current, and power, things are almost always very simple. Almost always...

Off-the-Grid: How Many Watts Does a Refrigerator Use?

mini fridge w150Refrigerators and freezers are used for preserving the food, cooling down beverages, and for other similar tasks. When the mains power is gone, refrigerators and freezers stop, with all the stored food and drinks being in jeopardy.

Regardless if You have a fridge that you want to keep operational during a power outage or you want to have a fridge or freezer running when camping, it is vital to know the power and energy requirements of your unit.

SI Prefixes: How Many Watts in a Kilowatt and Kilowatts in a Megawatt

watts to kilowatts mSI prefixes are very important in electrical engineering but also in everyday life. Their use is relatively easy, but it can also cause many problems when done incorrectly.

Watts to kilowatts, kilowatts to megawatts, and other conversions are very important when electric energy and power of electric motors, pumps, winches, inverters, batteries, and other devices are being calculated, planned, transferred, or being used. SI prefixes help significantly, especially when dealing with very large or very small values.

Unit Conversion: How to Convert HP to kW and kW to HP

hp to kw conversion mUnit conversions in electrical engineering are very important, it is relatively easy, but it can also cause many problems when planning or troubleshooting systems.

HP to kW conversion is very important when energy and power of internal combustion engines are compared or transferred between energy and power of electric motors, pumps, winches, inverters, and other devices being powered by electric energy.

Off-the-Grid: How Many Watts Does a Microwave Use?

microwave oven w150pxMicrowave ovens are very popular kitchen appliances commonly used for cooking and/or heating food and beverages. Microwave ovens are also very efficient devices, which is very important in many ways.

Due to their convenient nature, microwave ovens are commonly used when camping, on the boats, in the RVs and similar, leading many people to ask themselves, how many watts their microwave ovens actually use?

Off-the-Grid: How Many Watts Does a TV Use?

watts tv m w150pxTVs are not used any more for just 'watching a TV' - they are used for 'watching TV', but also for media streaming, for gaming, as communication devices, part of security systems, etc. - it is vital to know how many watts and energy in general they require.

Regardless if You are worried about your electric bill or you want to watch TV during power outages, we bring You the TV wattage comparison chart taking into account TV sizes and technologies.

The Best Car Battery - Brands, Types, Features, and Specifications

optima 34 78 redtop w150pxChoosing 'the best' car battery can be somewhat confusing, since just like cars, car batteries come in various sizes, shapes and also differ in terminal types and orientation, exact chemistry, CCA/MCA features, battery type, etc.

Picking the right battery means having the battery that will do its job for years to come, without leaving the user stranded with the dead car battery when needed the most.

Convert Watts to Amps and Amps to Watts - How to Calculate Watts

calculator w150pxConversions between electrical units are usually simple and straightforward - take a formula, write down values, and let the calculator do the rest.

However, in real life, things are not always that simple, especially when converting units that require at least one unit to be known. If You wish to know more about converting watts to amps, amps to watts, volt-amps to watts, and similar, read carefully...

Will a 2000-Watt Generator Run an Air Conditioner?

homelabs 10000 btu window ac 150pxMany people wonder what is the required size of the power generator in order to run an air conditioner without any power issues.

2000-watt inverter generators are popular, compact, and affordable portable units that are used in many situations, leading to the question, will a 2000 watt generator run an air conditioner in the case of a power outage?

Best 12V and 24V Lithium Trolling Motor Batteries

greenlife gl100 100ah mLithium electric trolling motor batteries offer many advantages over lead-acid batteries, including lightweight design, a large number of charging/discharging cycles, a very low self-discharge rate, more constant output voltage, almost no capacity loss with the current increase, etc.

Also, lithium trolling batteries still have some issues, like high initial price and safety concerns. For safety reasons, lithium trolling motor batteries are almost exclusively Lithium Iron Phosphate (LiFePO4) batteries featuring built-in Battery Management Systems (BMS), protecting the battery from unwanted events like short circuit, overcharge, over-discharge, and similar.

Top 5 Best 50 Amp Portable Generators - 50 Amp RV Generators

duromax xp12000eh w150pxPortable generators with 120/240V 50A (14-50R) plug and the list of other ports (L14-30R, L5-30R, 5-20R, 12VDC, etc.) are large, sturdy and powerful units, capable of providing plenty of energy over a longer period of time.

50 Amp portable generators are often used as RV generators, camping generators, in emergencies, on the construction sites and similar. They are usually powered by gas or gas/propane combination (dual-fuel models), with some larger industrial/commercial models featuring diesel engines.

What Can You Run on a 2000 Watt Generator?

2000 watt power generator m2000 watt generators are a very popular class of power generators, featuring acceptable price, long runtime on a single gas tank, quiet operation, simple maintenance etc., and are thus often used for camping, boating, fishing trips, in RVs, etc. Also, they are often used in emergencies.

Thus, many people wonder what household appliances their 2000 watt power generators may run and for how long.

Boat, Camping, RV and Household Appliances Wattage Charts

wattage chart mWhen powering home appliances using power generators and power stations, it is of utmost importance to know how much power our appliances require in order to operate properly and to avoid issues of overloading the power generators and power stations.

Our appliances chart includes the most common appliances, tools, gadgets used at homes, RVs, on the boats/yachts, during camping, etc.

Car Battery Died While Driving - Can a Car Battery Die While Driving?!

car pull over mMany people wonder if the car battery can die while driving, especially after their car battery died while driving. Obviously, answer is 'Yes, a car battery can die while driving'.

A cood car starting or dual purpose battery should not die while driving, but although it is rare event, it happens. There are many reasons why a car battery dies while driving, here are the few most common ones...

How to Recondition a Car Battery?

car battery amps moptima red top group35 w150pxMost cars still use lead-acid batteries of some kind - wet/flooded, AGM or even Gel-cells, but these batteries over time lose their capacity and the ability to start the engine.

Since quality car batteries are not cheap, many people wonder how they can recondition a car battery at home. Reconditioning car batteries at home can be done successfully, but this also depends on the battery type, its use, age, current condition and similar.

Best Solar Panel Kits - 100 Watts, 200 Watts, 400 Watts Kits

best solar panel kits mSolar panel kits are great solution for powering hungry electric and electronic devices in various off-the-grid situations like camping, taking fishing trips, or simply when having issues with mains power.

Solar panel kits consists of one or more solar panels, power/charge controller and one or more deep cycle batteries for storing electric energy and are usually combination of solar panel/power (charge) controller/battery or solar panel/power station.

Best Sump Pump Backup Battery

sump pump backup batteryBattery powered sump pumps are type of emergency equipment that must operate reliably when required, and saving the money on these pumps or their batteries may be very expensive thing to do.

Sump pump backup battery must be strong enough to power sump pump motor and it must store enough energy to power the whole unit long enough to prevent as much damage as possible until mains power is restored.

How Many Amps is a Car Battery - Car Battery Amps?

car battery amps mKnowing your car's battery amps and other features is very important not only when replacing the battery, but also when the battery is being used not only for cranking purposes, but also for powering other electric and electronic systems like lights, navigation, multimedia devices, security systems, etc.

With more and more onboard systems, car manufacturers are slowly replacing pure starting batteries with the new dual purpose AGM batteries, featuring many improvements over older flooded ones.

Non-Rechargeable vs. Rechargeable Hearing Aid Batteries: Size 10, 312, 13, 675 Hearing Aid Batteries

hearing aid batteries mNon-Rechargeable (disposable) zinc-air batteries have been standard hearing aid batteries for a long time. They have replaced older mercury-oxide batteries and after introducing mercury-free zinc-air batteries, they have become de facto standard for hearing aid batteries.

However, rechargeable batteries are being used more and more in everyday electronics and as such, they are slowly entering the hearing aid market as well. But, there are several very important issues that rechargeable batteries face when being used as hearing aid batteries...

Wrist Watch Battery Replacement Chart - Watch Battery Repair

376 377 sr626sw battery mWrist watches are commonly powered using one or rarely two button/coin cell batteries, and these batteries have a limited operating lifetime. When replacing an old battery with the new one, the best practice is to use batteries recommended by the watch manufacturers.

However, finding the exact type and model can be sometimes confusing due to the different labels some battery brands are using for their batteries. Also, using silver-oxide instead of alkaline batteries can prolong the watch operating time on a single battery.

Pick the Best 1000 CCA (Cold Cranking Amps) Marine Battery

odyssey 31m pc2150st m battery mMarine batteries are designed to operate in tough conditions due to vibrations and other mechanical stress, they must be able to power various electric and electronic devices and when the main engine must be started, they must be able to provide large currents in order to start large, often multiple gasoline or even diesel engines even when not fully charged. Such requirements significantly reduce the number of potential 1000 CCA marine battery models.

CCA (Cold Cranking Amps), CA (Cranking Amps) or MCA (Marine Cranking Amps), and HCA (Hot Cranking Amps) define the maximum current that a battery is able to provide under certain conditions.

How to Choose the Best Trolling Motor Battery

upg ub121000 deep cycle mWith all the available battery models and brands on the market, finding suitable trolling motor battery often can be daunting task, but it shouldn't be. But before getting new battery or battery pack, one should first write down few things, including size and weight of the boat, motor strength, required trolling time and of course, the funds allocated for the new trolling motor battery.

Battery Terms and Abbreviations - Glossary

energizer charger 150pxWhen describing batteries and their features and characteristics, many abbreviations are used.

Knowing their meanings is very important, because that is the difference between getting the right battery and the wrong battery. And the wrong battery often can cause much more damage than its money worth ...

The Best AGM and Lithium RV Deep Cycle Battery

optima d34m 150pxDeep cycle batteries for recreational vehicles (RVs) have very important purpose - they power onboard electronics and electrical devices while the vehicle's main motor is not working, while being off the grid. RV deep cycle batteries must tolerate deep discharge conditions and cyclic use, but they also must be resistant to vibrations, high and low temperatures, no usage for long time (sometimes for months) etc.

And since these batteries are far from being cheap, it is really important to choose them properly, according to the individual needs and requirements.